[clang] [Clang][Sema] properly remove qualifiers in __is_pointer_interconvertible_base_of (PR #167881)

[Richard Smith via cfe-commits]

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@@ -0,0 +1,22 @@
+// RUN: %clangxx %s -o %t
+// RUN: %t | FileCheck %s
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zygoloid wrote:

We don't use execution tests. You can test this with `static_assert` instead.

https://github.com/llvm/llvm-project/pull/167881